Explain the first major study that examined the influence of XYY factor.

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The first major study that examined the influence of XYY sampled about 200 men in the mental hospital, which would have predicted (assuming general population occurrences) about 1 occurrence. However, the study found 13 individuals who were XYY, which suggested that individuals who have mental disorders are more likely to have XYY chromosomes than those who do not have mental disorders. In other words, males who have XYY are at least 13 times (or 1,300%) as likely to have behavioral disorders as are those without this chromosomal abnormality.

Criminal Justice

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